Control method for air conditioning unit

Abstract

The invention belongs to the technical field of central air conditioners, and aims to solve the problem that when an existing central air conditioner simultaneously comprises a variable frequency module unit and a constant-frequency module unit, the energy demand and the energy consumption cannot be well considered. Therefore, the invention provides a control method for an air conditioning unit. The air conditioning unit comprises a plurality of variable-frequency module units and a plurality of constant-frequency module units. The control method comprises the steps that whether the air conditioning unit meets loading conditions or not is judged; the current states of all the variable-frequency module units and all the constant-frequency module units are obtained; according to the judgmentresult and the current states of all the variable-frequency module units and all the constant-frequency module units, the states of the variable-frequency module units and / or the constant-frequency module units are selectively adjusted. By means of the method, the energy consumption of the units is reduced as much as possible on the basis that the energy requirement is met, so that the air conditioning unit saves more energy.

Description

technical field [0001] The invention belongs to the technical field of central air-conditioning, and specifically provides a control method for an air-conditioning unit. Background technique [0002] Central air conditioners are commonly used commercial air conditioners. With the continuous improvement of manufacturing level, some central air conditioners include both frequency conversion module units and fixed frequency module units. Energy requirements and consumption become a difficult problem. [0003] In the prior art, there are mainly two control logics for the above-mentioned central air conditioner. The first one is to turn on the variable frequency module unit first and increase the frequency of the frequency conversion module unit to the maximum frequency when the unit loading condition is satisfied, and then turn on the fixed frequency unit. , the disadvantage of this control method is that the optimal operating frequency of the frequency conversion module unit i...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the existing central air conditioner can not better balance the energy demand and energy consumption when the existing central air conditioner includes both the frequency conversion module unit and the fixed frequency module unit unit, the present invention provides an air conditioner A control method for a unit. The air conditioning unit includes multiple frequency conversion module units and multiple fixed frequency module units. The control method includes: judging whether the air conditioner unit satisfies loading conditions; obtaining the current status of all frequency conversion module units and all fixed frequency module units; According to the judgment result and the current status of all variable frequency module units and all fixed frequency module units, selectively adjust the status of variable frequency module units and / or fixed frequency module units

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